STEREO Weekly Meeting Minutes for 2007-05-08 (Week 19)


ANNOUNCEMENTS
-------------

* The MOC requests that the instrument teams send them information about how
  the packet counters are treated in their telemetry, so that the information
  can be incorporated into the Data Loss Logs.


INSTRUMENT AND SPACECRAFT STATUS
--------------------------------

* All subsystems on both spacecraft are nominal.  The Ahead spececraft is
  currently operating on IMU #2.


DISCUSSION AND OPERATIONS CONSTRAINTS
-------------------------------------

Week 18

* Unattended track operations were started.  No anomalies have been seen so
  far.

* On day 124, the transmitter on station 55 went red at 04:55 during the Ahead
  pass and the track plan was not completed.  All data were downloaded.

* IMU #2 is still in use on the Ahead spacecraft.

* An average of 9 gigabits/day was brought down for Ahead, and 9.7 gigabits/day
  for Behind.

* The SECCHI campaign started on Friday.

* On day 122 at 04:20 UT during the Behind pass, station 26 encountered
  hardware problems.  Downlink was switched over to station 25, and all data
  were recovered, but no commanding was possible.

Week 19

* A parameter load for wheel speed avoidance was sent to the Ahead spacecraft
  this morning.

* Will be loading autonomy rules and macros to the Ahead spacecraft this week
  to make running on IMU #2 more robust.

* SECCHI campaign continues.  The SECCHI team reports that it's going well.
  They have been tracking active region 10953 that is now setting over the west
  limb.  On Wednesday and Thursday they will be making quiet Sun observations
  in Helium 304.

* IMPACT will adjust MCP voltage on Behind tomorrow.

Week 20

* SECCHI campaign ends late Thursday to early Friday, but there will still be
  additional tracks on both spacecraft.

Week 21

* Momentum dumps on Wednesday, day 143, at 14:30 UT on Ahead, and 20:00 UT on
  Behind.

Other

* Schedules currently go through first week of June, and beyond.  Schedules for
  June 25 and July 2nd are test schedules, and should not be treated as
  reliable.

* DAWN scheduled for launch June 30, PHOENIX on August 3, and SELENE in
  mid-August.

* The MOC has been looking into the data gap issue that SECCHI brought up last
  week.  It was discovered that the file transferred from DSN was truncated,
  and 54% was missing.  The data has been recovered.  Looking back, the MOC has
  found about 30 files since launch with similar problems.  They are in the
  process of having that data retransmitted, and will send an email listing
  which days have been reprocessed.

* Since July 4th falls on a Wednesday, the attended track for that week will be
  on Thursday.  Momentum dumps may also occur on that Thursday.

* Next HGA test will by on day 192, July 11th.  These occur quarterly.

* MESSENGER will fly by Venus on June 9th.  Instrument operations will not be
  adjusted for this event.


COORDINATED OBSERVATIONS
------------------------

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Scheduled activities for Week 19:

M May 07 (127)  Continuing SECCHI campaign
T May 08 (128)  
W May 09 (129)  SECCHI 304 campaign
T May 10 (130)  SECCHI 304 campaign
F May 11 (131)  
S May 12 (132)  
S May 13 (133)  

Notes:
* EIT shutterless campaign May 9, 16:50-00:00 UT; run time 19:00-21:40 UT 
* Ulysses quadrature/MERLIN observations, May 7-13

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Scheduled activities for Week 20:

M May 14 (134)  
T May 15 (135)  
W May 16 (136)  
T May 17 (137)  Last day of SECCHI campaign
F May 18 (138)  
S May 19 (139)  
S May 20 (140)  

Notes:
* EIT shutterless campaign May 15, 14:10-23:45 UT; run time 19:00-21:40 UT
* Ulysses quadrature with SOHO, Hinode, May 14-20

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Scheduled activities for Week 21:

M May 21 (141)  
T May 22 (142)  
W May 23 (143)  Momentum dumps, Ahead: 14:30 UT, Behind: 20:00 UT
T May 24 (144)  
F May 25 (145)  
S May 26 (146)  
S May 27 (147)  

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Scheduled activities for Week 22:

M May 28 (148)  
T May 29 (149)  
W May 30 (150)  
T May 31 (151)  
F Jun 01 (152)  
S Jun 02 (153)  
S Jun 03 (154)  

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Scheduled activities for Week 23:

M Jun 04 (155)  
T Jun 05 (156)  Messenger - Venus fly-by
W Jun 06 (157)  
T Jun 07 (158)  
F Jun 08 (159)  
S Jun 09 (160)  
S Jun 10 (161)  

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